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While most current approaches rely on further training techniques, such as fine-tuning or reinforcement learning, to enhance model capacities, model merging stands out for its ability of improving models without requiring any additional…

计算与语言 · 计算机科学 2025-05-26 Zehua Liu , Han Wu , Yuxuan Yao , Ruifeng She , Xiongwei Han , Tao Zhong , Mingxuan Yuan

Adapting pre-trained models with broad capabilities has become standard practice for learning a wide range of downstream tasks. The typical approach of fine-tuning different models for each task is performant, but incurs a substantial…

In recent times Large Language Models have exhibited tremendous capabilities, especially in the areas of mathematics, code generation and general-purpose reasoning. However for specialized domains especially in applications that require…

人工智能 · 计算机科学 2024-05-06 Sujit Khanna , Shishir Subedi

Model merging seeks to integrate task-specific expert models into a unified architecture while preserving multi-task generalization capabilities, yet parameter interference between constituent models frequently induces performance…

机器学习 · 计算机科学 2025-06-12 Runxi Cheng , Feng Xiong , Yongxian Wei , Wanyun Zhu , Chun Yuan

Integrating Automatic Speech Recognition (ASR) into Speech Emotion Recognition (SER) enhances modeling by providing linguistic context. However, conventional feature fusion faces performance bottlenecks, and multi-task learning often…

音频与语音处理 · 电气工程与系统科学 2026-03-27 Chia-Yu Lee , Huang-Cheng Chou , Tzu-Quan Lin , Yuanchao Li , Ya-Tse Wu , Shrikanth Narayanan , Chi-Chun Lee

Task arithmetic is a straightforward yet highly effective strategy for model merging, enabling the resultant model to exhibit multi-task capabilities. Recent research indicates that models demonstrating linearity enhance the performance of…

机器学习 · 计算机科学 2025-04-16 Rui Dai , Sile Hu , Xu Shen , Yonggang Zhang , Xinmei Tian , Jieping Ye

Sharpness-aware minimization (SAM) reports improving domain generalization by reducing the loss surface curvature in the parameter space. However, generalization during fine-tuning is often more dependent on the transferability of…

机器学习 · 计算机科学 2024-03-13 Tom Sherborne , Naomi Saphra , Pradeep Dasigi , Hao Peng

Multitask learning is a widely used paradigm for training models on diverse tasks, with applications ranging from graph neural networks to language model fine-tuning. Since tasks may interfere with each other, a key notion for modeling…

机器学习 · 计算机科学 2024-11-22 Dongyue Li , Aneesh Sharma , Hongyang R. Zhang

Multi-task learning (MTL) concurrently trains a model on diverse task datasets to exploit common features, thereby improving overall performance across the tasks. Recent studies have dedicated efforts to merging multiple independent model…

机器学习 · 计算机科学 2025-06-16 Bingjie Zhang , Hongkang Li , Changlong Shi , Guowei Rong , He Zhao , Dongsheng Wang , Dandan Guo , Meng Wang

The advent of large language models (LLMs) like GPT-4 has catalyzed the exploration of multi-task learning (MTL), in which a single model demonstrates proficiency across diverse tasks. Task arithmetic has emerged as a cost-effective…

计算与语言 · 计算机科学 2024-06-28 Yuyan Zhou , Liang Song , Bingning Wang , Weipeng Chen

Deep learning models have demonstrated exceptional performance across a wide range of computer vision tasks. However, their performance often degrades significantly when faced with distribution shifts, such as domain or dataset changes.…

计算机视觉与模式识别 · 计算机科学 2025-07-09 Samuel Barbeau , Pedram Fekri , David Osowiechi , Ali Bahri , Moslem Yazdanpanah , Masih Aminbeidokhti , Christian Desrosiers

Task arithmetic, representing downstream tasks through linear operations on task vectors, has emerged as a simple yet powerful paradigm for transferring knowledge across diverse settings. However, maintaining a large collection of task…

机器学习 · 计算机科学 2025-10-10 Siqi Zeng , Yifei He , Meitong Liu , Weiqiu You , Yifan Hao , Yao-Hung Hubert Tsai , Makoto Yamada , Han Zhao

Task arithmetic has emerged as a promising approach for editing models by representing task-specific knowledge as composable task vectors. However, existing methods rely on network linearization to derive task vectors, leading to…

机器学习 · 计算机科学 2025-04-04 Leonardo Iurada , Marco Ciccone , Tatiana Tommasi

Model merging combines fine-tuned checkpoints into a single multi-task model without retraining. Existing methods - such as task arithmetic, model soups, TIES, and DARE - are computationally efficient and empirically successful, but rely on…

机器学习 · 计算机科学 2026-05-29 Bethan Evans , Benjamin Etheridge , Stephen Roberts , Jared Tanner

Tabular data have been playing a mostly important role in diverse real-world fields, such as healthcare, engineering, finance, etc. The recent success of deep learning has fostered many deep networks (e.g., Transformer, ResNet) based…

机器学习 · 计算机科学 2026-03-18 Hangting Ye , Peng Wang , Wei Fan , Xiaozhuang Song , He Zhao , Dandan Gun , Yi Chang

Large language models increasingly rely on either reinforcement learning or multi-agent prompting to improve reasoning, yet these two paradigms remain difficult to combine. Directly applying single-agent reinforcement learning to multi-turn…

人工智能 · 计算机科学 2026-05-28 Chusen Li , Zhou Liu , Shuigeng Zhou , Wentao Zhang

Model merging has shown that multitask models can be created by directly combining the parameters of different models that are each specialized on tasks of interest. However, models trained independently on distinct tasks often exhibit…

机器学习 · 计算机科学 2026-03-17 Pratik Ramesh , George Stoica , Arun Iyer , Leshem Choshen , Judy Hoffman

There is a recent proliferation of research on the integration of machine learning and optimization. One expansive area within this research stream is predictive-model embedded optimization, which proposes the use of pre-trained predictive…

机器学习 · 计算机科学 2022-10-20 Chenbo Shi , Mohsen Emadikhiav , Leonardo Lozano , David Bergman

Multi-task learning (MTL) aims to leverage shared information among tasks to improve learning efficiency and accuracy. However, MTL often struggles to effectively manage positive and negative transfer between tasks, which can hinder…

机器学习 · 计算机科学 2025-05-19 Chenguang Wang , Xuanhao Pan , Tianshu Yu

Adapting models pre-trained on large-scale datasets is a proven way to reach strong performance quickly for down-stream tasks. However, the growth of state-of-the-art mod-els makes traditional full fine-tuning unsuitable and difficult,…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Maxime Fontana , Michael Spratling , Miaojing Shi